When work is done on a body its energy

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When work is done on a body its energy

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Decreases

Increases

remains constant

None of these

answer is A.

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Detailed Solution

When work is done on a body, its energy decreases.
According to the work-energy theorem,

work done on body = change in kinetic energy of the body

When a body does some work, it uses its energy to provide external force, due to which its energy decreases.

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